LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2019 >> Grand Cherokee Laredo, AWD, Automatic T/Case Control >> Repair and Diagnosis >> External Pages >> Different car >> Section 378 ((Security Gateway Module (SGW) Electrical Diagnostics)) >> DTC Troubleshooting >> U0089-00-ETHERNET Bus 2 >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

WARNING: This page is about a different car, the 2021 Jeep Grand Cherokee L. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
OPEN OR SHORTED ETHERNET CIRCUIT
SLAVE ETHERNET NETWORK MODULE
MASTER ETHERNET NETWORK MODULE

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .

scientia non olet · About LEMON Manuals